if sin(x)=2/5 and tan(x)>0 what is sin(2x)

If Sin(x)=2/5 And Tan(x)>0 What Is Sin(2x)

Answers

Answer 1

Answer:

B

Step-by-step explanation:

correct on edge

Answer 2

The answer is, sin (2x)=4√21/25

What is trigonometry?

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.

Here, given that,

sin(x)=2/5

and tan(x)>0

Then, cos(x)=√21/25

tan(x)=2/√21

Now, sin (2x)=2tan(x)/1+tan²(x)

                    =0.873/1.19

                    =0.733

                    =4√21/25

To learn more trigonometry click:

https://brainly.com/question/26719838

#SPJ2


Related Questions

Congo 2920 miles, yenisei 5512 kilometers, which is longer and by how much

Answers

Jsjsjsjjjsbdvyzjahgsisjsvsvjsjdjdndbdb HAhahah

Answer:

yenisei is longer by 812.716 kilometers

Step-by-step explanation:

2920/.621371

=4699.284 kilometers

5512- 4699.284

= 812.716

yenisei is longer by 812.716 kilometers

Evaluate what should happen when data forecasted from an exponential smoothing technique is detected to have a trend component.

Answers

Answer:

Option A: exponential smoothing is also known as triple exponential smoothing or Holt-Winters Exponential Smoothing

Step-by-step explanation:

P(A) = 0.8, P(B) = 0.55 and P(A and B) = 0.35.
What is P(A or B)?

Answers

Answer:  1

Work Shown:

P(A or B) = P(A) + P(B) - P(A and B)

P(A or B) = 0.8 + 0.55 - 0.35

P(A or B) = 1.35 - 0.35

P(A or B) = 1

A probability of 1 means there is 100% certainty the event happens. This must mean that there are only possible outcomes are: either event A happens, or B happens, or possibly both A and B happen simultaneously.

NEED HELP ASAP PLS!!

(08.03) Consider the following pair of equations:

y = 3x + 3
y = x − 1

Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution in (x, y) form.

Answers

Answer:

(1,0)

Step-by-step explanation:

1. x - 1 =3x+3

2. 3x - x = 2x

3. -1+ 3 = 2

4. 2x = 2

5. 2/2 = 1

x = 1

6. 1-1 = 0

y = 0

(1,0)

What is the sales tax rate? *

Answers

Answer:

depends for each state

Step-by-step explanation:

How do I figure out the sales tax?

Calculating Total Cost. Multiply the cost of an item or service by the sales tax in order to find out the total cost. The equation looks like this: Item or service cost x sales tax (in decimal form) = total sales tax. Add the total sales tax to the Item or service cost to get your total cost.

Five friends want to share 1,000
comic books equally. Can you use mental math find how many
comic books each friend will get?

Answers

Answer:200

Step-by-step explanation:

f(x) = 72-12x what is the domain and range

Answers

Answer:

The domain is x and the range is f(x)

Step-by-step explanation:

See attachment for answer:

Explanation:

Is undefined in other words “do not exist”



Elizabeth spins each spinner once.





What is the probability the arrows will land on a consonant and the number 2?

Answers

20% is the answer

Hope this helps

How many lines of symmetry does this figure have?
[Note: The black ball is part of the figure.]
A) 0
B) 1
C) 5
D) 10

Answers

Answer:

The answer is B) 1

Step-by-step explanation:

balls

remove it please......​

Answers

what do you need removing? I'll try to help

Numbers Of pizza to order
What is the slope of the line

Answers

U can order 1 pizza lol
I’d like half pepperoni and half cheese with a Diet Coke

What’s is the rate of change for the line that goes through the points (8,14) and (11,19.25)

Answers

Answer:

Rate of Change / Slope = 1.75 (or 7/4)

Step-by-step explanation:

Slope is Rise/Run which is (y2-y1)/(x2-x1). When we plug in both ordered pairs, we get (19.25-14)/(11-8)=5.25/3=1.75 as the slope.

The rate of change is the ratio of the rise and the run of the line. Hence, the rate of change of the line is 1.75

Rate of change = (Rise / Run)

Rise = y2 - y1 = (19.25 - 14) = 5.25

Run = x2 - x1 = (11 - 8) = 3

Rate of change = (5.25 / 3) = 1.75

Therefore, the rate of change for the line is 1.75

Learn more : https://brainly.com/question/18904995

Pls help with part b

Answers

Answer:

any number to the power of 0

Step-by-step explanation:

Any number to the power of 0 will be equal to 1.

[tex](1)^{0} (109)^{0} (-16.9)^{0\\}[/tex]

Any of those would work.

The total number of carbohydrate grams per serving is missing from the nutrition label of Cade's box of cereal. However, the label indicates that a serving of cereal provides 7% of the recommended daily amount. Cade checked online and found that the recommended amount of carbohydrate is 300 grams. Based on this information how many grams of carbohydrates are in Cade's cereal?

Answers

Answer:

21 grams so the second answer choice

Step-by-step explanation:

300*.07=21

On Friday, a local hamburger shop sold a combined total of 436 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number
of hamburgers sold. How many hamburgers were sold on Friday?

Answers

115 hamburgers were sold

1. A statistician calculates that 8% of Americans are vegetarians. If the statistician is correct, what is the probability that the proportion of vegetarians in a sample of 569 Americans would be greater than 9%?2.The mean points obtained in an aptitude examination is 166 points with a standard deviation of 19 points. What is the probability that the mean of the sample would differ from the population mean by less than 1.1 points if 66 exams are sampled?

Answers

Answer:

1) the probability that the proportion of vegetarians in the sample would be greater than 9% is 0.1902

2) the probability that the mean of the sample would differ from the population mean by less than 1.1 points in the is 0.3616

p( /x" - u/ < 0.47 ) = 0.3616

Step-by-step explanation:

1)

Given that;

p = 8% = 0.08 and n = 569

what is the probability that the proportion of vegetarians in a sample of 569 Americans would be greater than 9% (0.09)

that is;

p( p" > 0.09) = ?

p( p" > 0.09) = p( z > [(0.09 - 0.08)/(√((0.08(1 - 0.08))/569))] )

= p( z > (0.01 / 0.0114))

= p ( z > 0.8772)

= 0.1902

Therefore the probability that the proportion of vegetarians in the sample would be greater than 9% is 0.1902

2)

Given that;

mean points obtained in an aptitude examination u = 166

standard deviation α = 19

sample size n = 66

x" - u = 1.1

first we say

x-score = (x" - u) / (α/√n) = 1.1 / (19/√66) = 1.1 / 2.3387 = 0.47

p( -0.47 < z < 0.47 )

= p( z < 0.47) - p( z < - 0.47)

= 0.6808 - 0.3192

= 0.3616

Therefore the probability that the mean of the sample would differ from the population mean by less than 1.1 points in the is 0.3616

p( /x" - u/ < 0.47 ) = 0.3616

what is a correlation co-efficient?

Answers

Answer:

Correlation coefficients are used when you are doing statistics to find or measure how strong a relationship is between two variables.

Step-by-step explanation:

A triangle with side lengths of 10, 18, and 30 inches is similar to another triangle. The shortest side of the other triangle has length 3 inches. What is the perimeter, in inches, of the smaller triangle?

Perimeter = 9.5


Perimeter = 10.6


Perimeter = 15.2


Perimeter = 17.4

Answers

Answer:

wo similar figures have a ratio of 3:5. If 1 side of the smaller figure is 9 ... 12 in. What is the length of LM? x. = 12. 24. A. 13 in. C. 16 in. A. 10 ft. B. 14.4 ft ... How long is the corresponding side of the larger polygon? A. 18 cm. B. 24 cm ... 2. 10. An equilateral triangle has side lengths of 14 inches. Find the altitude of the

Step-by-step explanation:

The perimeter of the smaller triangle will be 17.4. Then the correct option is D.

What is the triangle?

A triangle is a three-sided polygon with three angles. The angles of the triangle add up to 180 degrees.

A triangle with side lengths of 10, 18, and 30 inches is similar to another triangle.

The shortest side of the other triangle has a length of 3 inches.

Then the perimeter of the smaller triangle will be

Let the other two sides of the smaller triangle be x and y. Then we have

3/10 = x/18 = y/30

From the first two terms, we have

3/10 = x/18

    x = 5.4 inches

Then from the first and third terms, we have

y/30 = 3/10

     y = 9

Then the perimeter of the triangle will be

P = 3 + 5.4 + 9

P = 17.4 inches

More about the triangle link is given below.

https://brainly.com/question/25813512

#SPJ2

A rock is thrown upward with a velocity of 17 meters per second from the top of a 31 meter high cliff and it missies the cliff on the way back down when will the rock ve 8 meters from the ground level

Answers

Answer:

[tex]4.5\ \text{s}[/tex]

Step-by-step explanation:

t = Time taken

u = Initial velocity =17 m/s

v = Final velocity

s = Displacement

a = Acceleration

g = Acceleration due to gravity = 9.81 m/s² = a

[tex]v^2-u^2=2as\\\Rightarrow s=\dfrac{v^2-u^2}{2a}\\\Rightarrow s=\dfrac{0^2-17^2}{2\times -9.81}\\\Rightarrow s=14.73\ \text{m}[/tex]

Total height the rock is to fall when it is 8 meters from the ground is [tex]14.73+(31-8)=37.73\ \text{m}[/tex]

[tex]v=u+at\\\Rightarrow t=\dfrac{v-u}{a}\\\Rightarrow t=\dfrac{0-17}{-9.81}\\\Rightarrow t=1.73\ \text{s}[/tex]

Time taken to reach the maximum height is 1.73 s.

[tex]s=ut+\dfrac{1}{2}at^2\\\Rightarrow 37.73=0+\dfrac{1}{2}\times 9.81t^2\\\Rightarrow t=\sqrt{\dfrac{37.76\times 2}{9.81}}\\\Rightarrow t=2.77\ \text{s}[/tex]

Time taken from the maximum height to the point which is 8 m from the ground is 2.77 s.

So, time taken from the moment of the throw to the point 8 m from the ground is [tex]1.73+2.77=4.5\ \text{s}[/tex].

Evaluate the circulation of G =xyi +zj +4yk around a square of side 9, centered at the origin, lying in the yz-plane, and oriented counterclockwise when viewed from the positive x-axis.

Answers

Answer:

I didn't know the answer and sorry I am here taking freepoint because I needed them in a hurry so that I can ask my questions from someone else that's why I really sorry and thank you for free points

A building is 1ft from an 11 ft fence that surrounds the property. A worker wants to wash a window in the building 14ft from the ground. He plans to place a ladder over the fence so it rests against the building. He decided he should place the ladder 11ft from the fence for stability. To the nearest tenth of a foot, how long a ladder will he need?

Answers

Answer:

L = 18,4 ft

Step-by-step explanation:

The building, the ground, and the ladder make up a right triangle, with legs:

The distance (a) between the bottom of the ladder and the building 12 ft

The distance (b) between the gound and the window 14 ft up

The hypothenuse is the length of the ladder (L)

According to Pythagoras theorem

L²  = a²  + b²

L  = √  (12)²  +  (14)²

L = √ 144 + 196

L = √ 340

L = 18,4 ft

add on sc alawad2003

Answers

Answer:

Mkay?

Step-by-step explanation:

4. Tom and Bina read 34 books in a month. Bina and Weiming read 58 books in the
same month. Weimning read twice as many books as Tom. How many books did
Bina read in that month?​

Answers

Answer:

92

Step-by-step explanation:

the question is only asking how many books Bina read, so the amount of books Weimning read is irrelevant.

to get the answer, you have to add both the amount of books bina read in the month.

hope this helped :)

Help plzz! 13 points and will give brainliest!

Answers

Answer: This is rly confusing

Step-by-step explanation:

What is the slope of the line that contains these points?

Answers

Answer:

[tex]m=7[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Find points from chart.

Point (-7, -7)

Point (-4, 14)

Step 2: Find slope m

Substitute:                    [tex]m=\frac{14+7}{-4+7}[/tex]Add:                              [tex]m=\frac{21}{3}[/tex]Divide:                          [tex]m=7[/tex]

Answer:

[tex]\boxed {\boxed {\sf m=7}}[/tex]

Step-by-step explanation:

To find the slope, we can use the slope formula.

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

where (x₁, y₁) and (x₂, y₂) are points on the line.

We can pick any two points in the chart.

Let's use (-1, 35) and  (2,56).

If we use these points, then the variables are:

[tex]x_1=-1 \\y_1=35 \\x_2=2 \\y_2=56[/tex]

Substitute the values into the formula.

[tex]m=\frac{56-35}{2--1}[/tex]

Solve the numerator.

56-35=21

[tex]m=\frac{21}{2--1}[/tex]

Solve the denominator.

2--1= 2+1=3

[tex]m=\frac{21}{3}[/tex]

Divide.

[tex]m=7[/tex]

The slope of the line is 7

PLEASE HELP!!!!! PEOPLE ARE GETTING THEM WRONG FOR ME!!!

Answers

Answer:

18 lawns

Step-by-step explanation:

Lets take the number of lands that would be mow(ed) in 36 hours as x

Hence,

[tex]Thriugh\ the\ proportion\ method\ , we\ get\ \\\\3 : 6::x:36\\36*3=6x\\\frac{36*3}{6} =x\\\frac{108}{6}=x\\x=18[/tex]

The ages of three teachers are consecutive even integers. Three times the age of the youngest teacher is 48 years more than the older teacher’s age. What is the age of the youngest teacher?A.14 B.18 C.22 D.26

Answers

Answer:

B

Step-by-step explanation:

The answer is B 18.

Explain the difference between a greatest common factor and a least common multpule

Answers

Answer:

The Greatest Common Factor, the GCF, is the biggest ("greatest") number that will divide into (that is, the largest number that is a factor of) both 2940 and 3150. On the other hand, the Least Common Multiple, the LCM, is the smallest ("least") number that both 2940 and 3150 will divide into.

Have a good day



Express your answer as a polynomial in standard form.

f(x) = x² – 3x + 9

g(x) = 5x – 9

Find: (gof)(x)

Answer:

Answers

Answer:

g(f(x)) = 5x^2 - 15x + 36

Step-by-step explanation:

f(x) = x² – 3x + 9

g(x) = 5x – 9

(g o f)(x)

g(f(x))

x = f(x) = x^2 - 3x + 9

g(x^2 - 3x + 9)

= 5(x^2 - 3x + 9) - 9

g(f(x)) = 5x^2 - 15x + 36

the point that doesn't lie to a straight line y=-4x+12 is​

Answers

Answer:

12?

Step-by-step explanation:

Other Questions
Arizona shares borders with what other states? 2x+2(2x-1)=4(x-5)+3(x+1) is x = rewrite this in your own words please: Maturity Stage During the maturity stage, the product is established and the aim for the manufacturer is now to maintain the market share they have built up. This is probably the most competitive time for most products and businesses need to invest wisely in any marketing they undertake. They also need to consider any product modifications or improvements to the production process which might give them a competitive advantage. I think this would be the best time for the company to purchase an emerging technology. Which example describes areaA. Measuring the height of the grass in a field. B. Measuring the length around a field of grassC. Measuring the length from one end of the field to the other D. Measuring the amount of space that a field of grass takes up. What are casta paintings? I need help please I need a summary about the American Red Cross a dragon can fly 80 miles in 2 hours. an alien can fly 58 miles in 4 hours.how far can a dragon fly in 11 hour. and how far can the alien fly in 1 hour. Can you help me pleaee Find the time required for an investment of 5000 dollars to grow to 8300 dollars at an interest rate of 7.5percent per year, compounded quarterly.Your answer is t =years.You may enter the exact value or round to 2 decimal places. What does Elie Wiesel seem to be saying about the balancebetween self-preservation and commitment to family? What insight intolife does Night offer on this topic? HOW DID THE ROLE OF THE POLICE EVOLVE IN THE 20TH CENTURY? What is the effect of eating martian food and drinking martian water? ? REF02 - Post TestWhat should the first grit of sandpaper be when starting a featheredge?OP80P180OP320P500ble of Contents Qu procedimiento debe realizar para convertir kilmetros a mililitros Monopolistic competition is defined by product differentiation .explain because of its geographic location, the Arabian Peninsula became: 1. A ball is thrown straight up.if the launch velocity is 15 m/s, at what velocity will the ball return to the thrower's hand?2. A boat moves across a river going 18 m/s. At the same time there is a current flowing at a right angle to the boat at 6 m/s. What is the resulting velocity of the boat? help pleaseeeeeeeeeeee How do I find the lcm of a number .Can you please explain to me Read the following excerpt from Leslie Marmon Silkos story The Man to Send Rain Clouds. Leon watched him climb the hill, and when he had disappeared within the tall, thick walls, Leon turned to look up at the high blue mountains in the deep snow that reflected a faint red light from the west. He felt good because it was finished, and he was happy about the sprinkling of the holy water; now the old man could send them big thunderclouds for sure. What does the holy water symbolize for Leon? It symbolizes his ties to the Catholic Church. It symbolizes his love and affection for Teofilo. It symbolizes his Pueblo traditions and hope for rain. It symbolizes his strong rejection of Pueblo traditions.